US6863314B2 - Apparatus relating to tube couplings - Google Patents

Apparatus relating to tube couplings Download PDF

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Publication number
US6863314B2
US6863314B2 US09/850,866 US85086601A US6863314B2 US 6863314 B2 US6863314 B2 US 6863314B2 US 85086601 A US85086601 A US 85086601A US 6863314 B2 US6863314 B2 US 6863314B2
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United States
Prior art keywords
tube
coupling body
coupling
latching device
engage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US09/850,866
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English (en)
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US20010054819A1 (en
Inventor
John Derek Guest
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John Guest International Ltd
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John Guest International Ltd
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Assigned to JOHN GUEST INTERNATIONAL LIMITED reassignment JOHN GUEST INTERNATIONAL LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GUEST, JOHN DEREK
Publication of US20010054819A1 publication Critical patent/US20010054819A1/en
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Publication of US6863314B2 publication Critical patent/US6863314B2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • F16L37/0985—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/10—Indicators for correct coupling

Definitions

  • This invention relates to couplings for receiving tubes or stuffer pins or the like such as disclosed in EP-A-00300504.8 and EP-A-756125.
  • a number of users of such devices have requested that secondary latches be fitted to the connectors in certain applications such as in tube connectors used in motor vehicle engine compartments.
  • a secondary latch is engaged in a separate manual operation from the primary assembly operation of inserting a tube in the coupling body and that the secondary latch only operates properly if the tube has been inserted so the primary latch within the coupling body is successfully engaged.
  • This invention provides a coupling for a tube or the like comprising a coupling body having a throughway open at one end to receive an end portion of a tube, sealing means mounted in the coupling body at a location spaced from said open end thereof to engage and seal with the outer periphery of the tube, and a tube latching device comprising first latching means disposed within the coupling body having at least one latch to engage automatically with a feature on the tube when the tube end portion has been inserted sufficiently into the throughway to engage with the sealing means to retain the tube end portion in the coupling body and second manually operable latching means disposed externally of the coupling body having a latch engageable with a feature on the tube when the end portion of the tube has been inserted into the coupling body sufficient for the first latch to engage to provide a secondary retention for the tube in the coupling body.
  • FIG. 1 is a perspective view of a connector and tube end to be located in the connector with a secondary external latch in the released position;
  • FIG. 2 is a perspective view of a connector of FIG. 1 showing the tube end engaged in the connector and the secondary latch in its closed position;
  • FIG. 3 is a detailed view of a portion of the secondary latch of FIG. 1 ;
  • FIG. 4 is a cross-sectional view of the connector and tube end as shown in FIG. 1 ;
  • FIG. 5 is a cross-sectional view of the coupling with the tube end partially inserted and the secondary latch engaged as shown in FIG. 2 ;
  • FIG. 6 is a cross-sectional view of the coupling with the tube end fully inserted and the secondary latch engaged as shown in FIG. 2 ;
  • FIG. 7 is a perspective view of an alternative form of coupling and tube end with the tube end in alignment with the connector and an external, secondary latch on the coupling in the released position;
  • FIG. 8 is a perspective view of the coupling of FIG. 7 showing the tube end fully engaged in the coupling and the second external latch in the closed position;
  • FIG. 9 is a cross-sectional view through the connector and tube end of FIG. 7 ;
  • FIG. 10 is a cross-sectional view of the connector as shown in FIG. 9 with the tube end partially inserted in the coupling;
  • FIG. 11 is a further view of the connector of FIG. 9 with the tube end fully inserted in the coupling and the secondary external latch closed;
  • FIGS. 12 and 13 and 14 and 15 show perspective and cross-sectional views of further connector arrangements with the stuffer pins rather than the tube ends.
  • FIGS. 1 to 6 of the drawings there is shown a modified form of the tube coupling described as illustrated in our European patent publication No. 0829671 and in particular FIGS. 9 and 10 of that specification to which reference should be made.
  • the coupling comprises a coupling body 10 having a stepped throughway 11 open at one end 12 of the coupling body to receive a tube end fitting indicated at 13 .
  • the tube end fitting in this case is a standard male end form to SAE (Society of Automotive Engineers) J2044. Other similar fittings are equally applicable.
  • SAE Society of Automotive Engineers
  • the throughway 11 is stepped at 14 to an elongated diameter portion 15 to receive the tube end 13 with a close or interference fit.
  • the throughway is stepped at 16 to a second enlarged diameter portion 17 in which a pair of O-ring seals 18 are located with a spacer 19 between them to seal on the outside of the tube end 13 .
  • the throughway has a further step 20 to an enlarged diameter portion 21 which extends through to the open end of the throughway at 12 .
  • the latching structure comprises a mounting element having a first position which extends into the coupling body 10 and a second position which extends over the coupling body 10 .
  • a first internal latch is located within the coupling body 10 and comprises a sleeve 22 extending through the enlarged diameter portion 21 of the throughway 11 and having a reduced diameter end portion to engage in portion 17 of the throughway.
  • the sleeve has three integral resilient legs 24 disposed over three quarters of the circumference of the sleeve and projecting towards the open end of the coupling.
  • the legs have latch members 25 at their distal end which have outwardly extending abutments which engage in radial openings 26 through the wall of the coupling body and have inwardly projecting teeth 25 a to engage a raised annular abutment or bead 27 on the tube end.
  • latch members 25 at their distal end which have outwardly extending abutments which engage in radial openings 26 through the wall of the coupling body and have inwardly projecting teeth 25 a to engage a raised annular abutment or bead 27 on the tube end.
  • the sleeve 22 has integral struts 28 projecting between the teeth to the open end of the coupling body.
  • the struts are formed integrally with a second position of a mounting element or end cap 30 encircling the end of the coupling body and which is adjustable axially on the coupling body to adjust the position of the internal latches for release of a tube end from the coupling body as described in our previous European publication.
  • the internal latches in the coupling body are provided over three quarters of the circumference of the sleeve.
  • the remaining quarter of the sleeve is disposed opposite a slot 31 formed with the wall of the coupling body and a corresponding slot 32 formed in the wall of the cap.
  • the wall of the cap has an extension 33 in alignment with the slot 32 and a leg 34 is attached to the extension by an integral hinge 35 .
  • the leg has a detent 36 at its distal end shaped to extend through the slots in the cap and coupling body and to engage the end of the tube behind the raised rib 27 to provide a secondary, external latch for holding the tube in place in the coupling body.
  • the end of the detent 36 is radiused as shown at 37 with a corresponding radius to the tube end to provide a close engagement between the abutment and tube.
  • the detent is formed with abutments 36 a which snap behind abutments on either side of the slot in the coupling body to retain the detent in the engaged position.
  • the hinge 35 between the leg 34 and cap extension 33 has a moulded characteristic such that the leg 34 snaps towards the coupling body when adjacent the body and snaps outwardly of the body when withdrawn beyond an intermediate position in its travel, i.e., the hinge 35 also functions as an integral spring or integral spring means in the illustrated embodiment. The leg then stands outwardly of the coupling body and provides a clear visual or tactile indication that it is not engaged.
  • FIGS. 7 to 11 show a broadly similar arrangement except that in this case the tube end 13 has a second raised bead 40 beyond the first bead or abutment 27 and the detent 36 on the leg 34 is arranged to project beyond body in the closed position and to engage the tube end 13 beyond the second bead 40 .
  • the tube abutment 27 does not fit between slots in the cap and coupling body so the coupling body may be provided with four internal latches to engage the bead 27 rather than three as the shown in the embodiment of FIG. 1-6 .
  • the detent is in the form of a C-shaped clip 41 which is a snap fit on the tube end. The arrangement is otherwise much the same as that of FIG. 1 .
  • FIGS. 1 to 6 can also be adapted to have four latch members 25 within the coupling body and one pair of members spaced sufficiently to accommodate the external manual latch between them.
  • FIGS. 12 to 15 shows similar arrangements applied to stuffer pins rather than tube ends.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
US09/850,866 2000-05-10 2001-05-08 Apparatus relating to tube couplings Expired - Lifetime US6863314B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0011317.5 2000-05-10
GBGB0011317.5A GB0011317D0 (en) 2000-05-10 2000-05-10 Tube couplings

Publications (2)

Publication Number Publication Date
US20010054819A1 US20010054819A1 (en) 2001-12-27
US6863314B2 true US6863314B2 (en) 2005-03-08

Family

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Family Applications (1)

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US09/850,866 Expired - Lifetime US6863314B2 (en) 2000-05-10 2001-05-08 Apparatus relating to tube couplings

Country Status (9)

Country Link
US (1) US6863314B2 (pt)
EP (1) EP1154190B1 (pt)
JP (1) JP2002005374A (pt)
AU (1) AU779670B2 (pt)
BR (1) BR0101857B1 (pt)
DE (1) DE60113912T2 (pt)
ES (1) ES2250311T3 (pt)
GB (1) GB0011317D0 (pt)
NZ (1) NZ511546A (pt)

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US20040066034A1 (en) * 2002-10-07 2004-04-08 Akira Takayanagi Connection verifying device and connection verifying structure for a pipe and a connector
US20050023825A1 (en) * 2002-03-05 2005-02-03 Sakura Rubber Co., Ltd Coupling apparatus including release preventing structure
US20050062287A1 (en) * 2001-11-20 2005-03-24 Lutzke Matthew David Secondary retention clip for fluid tube connection
US20060151999A1 (en) * 2002-11-25 2006-07-13 Legris Sa Connector with enhanced safety
US20060202475A1 (en) * 2005-03-01 2006-09-14 Ti Group Automotive Systems, Llc Anti-rotation quick connector
US20090139551A1 (en) * 2007-11-07 2009-06-04 Patrick Opel Window cleaning system for a motor vehicle
US20090140514A1 (en) * 2007-12-03 2009-06-04 John Guest International Limited Tube couplings
US20090295152A1 (en) * 2008-05-28 2009-12-03 John Guest International Limited Tube couplings
US20100052315A1 (en) * 2008-08-28 2010-03-04 Ti Group Automotive Systems, Llc Quick connector coupling with lateral stabilization
US20100148497A1 (en) * 2007-06-12 2010-06-17 Honda Motor Co., Ltd Connector drop-off prevention structure and connector drop-off prevention method
USD629894S1 (en) 2008-07-03 2010-12-28 Value Plastics, Inc. Male body of connector for fluid tubing
USD630320S1 (en) 2008-07-03 2011-01-04 Value Plastics, Inc. Connector for fluid tubing
USD634840S1 (en) 2008-07-03 2011-03-22 Value Plastics, Inc. Female body of connector for fluid tubing
US20110175348A1 (en) * 2010-01-21 2011-07-21 Automatic Switch Company Valve connections
USD645547S1 (en) 2007-11-19 2011-09-20 Value Plastics, Inc. Male quick connect fitting
US8056937B2 (en) 2006-12-12 2011-11-15 John Guest International Limited Tube couplings
USD649240S1 (en) 2009-12-09 2011-11-22 Value Plastics, Inc. Male dual lumen bayonet connector
USD650478S1 (en) 2009-12-23 2011-12-13 Value Plastics, Inc. Female dual lumen connector
USD652510S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Connector for fluid tubing
USD652511S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Female body of connector for fluid tubing
US8113546B2 (en) 2005-06-10 2012-02-14 Value Plastics, Inc. Latching female fluid tubing coupler
USD655393S1 (en) 2009-06-23 2012-03-06 Value Plastics, Inc. Multi-port valve
USD663022S1 (en) 2011-02-11 2012-07-03 Nordson Corporation Male body of connector for fluid tubing
US20120299291A1 (en) * 2010-02-18 2012-11-29 Takanobu Kamiya Fluid joint
US8397756B2 (en) 2006-01-20 2013-03-19 Nordson Corporation Fluid conduit couplers with depressible latch mechanism
US8448994B2 (en) 2008-07-03 2013-05-28 Nordson Corporation Latch assembly for joining two conduits
US20130137295A1 (en) * 2010-07-22 2013-05-30 Bayerische Motoren Werke Aktiengesellschaft Locking Device for a Connecting Arrangement
USD698440S1 (en) 2011-07-29 2014-01-28 Nordson Corporation Connector for fluid tubing
USD699840S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Male body of connector for fluid tubing
USD699841S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Female body of connector for fluid tubing
USD709612S1 (en) 2011-12-23 2014-07-22 Nordson Corporation Female dual lumen connector
US8960726B2 (en) 2011-11-23 2015-02-24 Parker-Hannifin Corporation Coupling lock mechanism
US9046205B2 (en) 2009-12-09 2015-06-02 Nordson Corporation Fluid connector latches with profile lead-ins
USD733265S1 (en) * 2012-05-25 2015-06-30 Asetek Danmark A/S Fluid connector for a cooling system
USD733842S1 (en) * 2014-06-19 2015-07-07 Life Technologies Corporation Tube connector
US9217524B2 (en) 2011-11-23 2015-12-22 Parker-Hannifin Corporation Coupling lock mechanism
US9261214B2 (en) 2010-06-22 2016-02-16 John Guest International Limited Tube coupling having an improved collet alignment
US9322499B2 (en) 2013-10-11 2016-04-26 John Guest International Limited Connector
US9388929B2 (en) 2009-12-09 2016-07-12 Nordson Corporation Male bayonet connector
US9464741B2 (en) 2009-12-09 2016-10-11 Nordson Corporation Button latch with integrally molded cantilever springs
US9551447B2 (en) 2013-10-10 2017-01-24 John Guest International Limited Connector for connecting to a tube
USD785790S1 (en) 2009-12-09 2017-05-02 General Electric Company Male dual lumen bayonet connector
US9671052B2 (en) * 2015-10-27 2017-06-06 Whirlpool Corporation Collet securing device for joining two fluid lines and providing lateral support at the connection of the two fluid lines
US9909701B2 (en) 2012-03-29 2018-03-06 John Guest International Limited Tube couplings
USD838366S1 (en) 2016-10-31 2019-01-15 Nordson Corporation Blood pressure connector
US10281075B2 (en) 2016-11-15 2019-05-07 Campbell Fittings, Inc. Quick disconnect coupling for conduit
US10422459B2 (en) 2015-01-14 2019-09-24 Norma U.S. Holding Llc Conduit connector with a primary and secondary latch
US10480117B2 (en) 2017-02-27 2019-11-19 Whirlpool Corporation Self cleaning sump cover
US10557469B2 (en) 2016-03-22 2020-02-11 Whirlpool Corporation Multi-outlet fluid flow system for an appliance incorporating a bi-directional motor
US10619289B2 (en) 2017-02-27 2020-04-14 Whirlpool Corporation Self cleaning diverter valve
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US10697700B2 (en) 2018-01-17 2020-06-30 Whirlpool Corporation Refrigeration water dispensing system
US10711930B2 (en) 2009-12-09 2020-07-14 Nordson Corporation Releasable connection assembly
US11209106B2 (en) 2019-03-22 2021-12-28 General Electric Company Self-locking fluid coupling assembly
USD944080S1 (en) 2019-11-01 2022-02-22 TSI Products, Inc. Clip
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EP2673543B1 (en) * 2011-02-08 2015-05-27 Emer S.p.a. Coupling device
DE102013016855B4 (de) * 2013-10-10 2019-07-11 Voss Automotive Gmbh Mehrteilige Leitung
CN108980494A (zh) * 2017-11-15 2018-12-11 陆秀尧 用于高压液体输送的防脱落接口
DE102020006979A1 (de) * 2020-11-13 2022-05-19 A. Kayser Automotive Systems Gmbh Fluidkupplung, insbesondere für Kraftstoffleitungen in Kraftfahrzeugen, Kombination aus der Fluidkupplung mit einem entsprechenden Gegenstück und Verfahren zum Herstellen einer Verbindung von zwei Fluidleitungen
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Cited By (90)

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Publication number Priority date Publication date Assignee Title
US20050062287A1 (en) * 2001-11-20 2005-03-24 Lutzke Matthew David Secondary retention clip for fluid tube connection
US7618069B2 (en) * 2001-11-20 2009-11-17 Cooper-Standard Automotive, Inc. Secondary retention clip for fluid tube connection
US7481466B2 (en) 2002-03-05 2009-01-27 Sakura Rubber Co., Ltd. Coupling apparatus including release preventing structure
US7481467B2 (en) 2002-03-05 2009-01-27 Sakura Rubber Co., Ltd. Coupling apparatus including release preventing structure
US20050023825A1 (en) * 2002-03-05 2005-02-03 Sakura Rubber Co., Ltd Coupling apparatus including release preventing structure
US20070132233A1 (en) * 2002-03-05 2007-06-14 Sakura Rubber Co., Ltd. Coupling apparatus including release preventing structure
US20070132234A1 (en) * 2002-03-05 2007-06-14 Sakura Rubber Co., Ltd. Coupling apparatus including release preventing structure
US7243953B2 (en) * 2002-03-05 2007-07-17 Sakura Rubber Co., Ltd. Coupling apparatus including release preventing structure
US7316428B2 (en) * 2002-10-07 2008-01-08 Tokai Rubber Industries, Ltd. Connection verifying device and connection verifying structure for a pipe and a connector
US20040066034A1 (en) * 2002-10-07 2004-04-08 Akira Takayanagi Connection verifying device and connection verifying structure for a pipe and a connector
US7338086B2 (en) * 2002-11-25 2008-03-04 Legris Sa Connector with enhanced safety
US20060151999A1 (en) * 2002-11-25 2006-07-13 Legris Sa Connector with enhanced safety
US20060202475A1 (en) * 2005-03-01 2006-09-14 Ti Group Automotive Systems, Llc Anti-rotation quick connector
US7967342B2 (en) * 2005-03-01 2011-06-28 Ti Group Automotive Systems, Llc Anti-rotation quick connector
US8113546B2 (en) 2005-06-10 2012-02-14 Value Plastics, Inc. Latching female fluid tubing coupler
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BR0101857B1 (pt) 2009-01-13
DE60113912T2 (de) 2006-07-20
AU779670B2 (en) 2005-02-03
EP1154190A2 (en) 2001-11-14
NZ511546A (en) 2003-01-31
BR0101857A (pt) 2001-12-18
EP1154190A3 (en) 2003-01-15
DE60113912D1 (de) 2006-02-23
EP1154190B1 (en) 2005-10-12
GB0011317D0 (en) 2000-06-28
US20010054819A1 (en) 2001-12-27
AU4378801A (en) 2001-11-15
JP2002005374A (ja) 2002-01-09
ES2250311T3 (es) 2006-04-16

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